AnyWithContext returns a new Any and an associated Context derived from ctx.

BreakerWithContext returns a Breaker and an associated context derived from ctx.

Runs f while holding the lock.

Runs f while not holding the lock.

Any calls a group of functions in separate goroutines, and checks that at least one function call succeeded.

A Breaker calls functions in separate goroutines, returning a nil error if one succeeds.

Join calls a group of functions in separate goroutines and waits until they have all returned.

Ctr is a 32-bit, lock-free counter.

Ctr64 is a 64-bit, lock-free counter.

Flag is a lock-free boolean flag.

FuncGroup calls a group of functions in separate goroutines and waits until they have all returned.